CN213129749U

CN213129749U - Crooked stone basket of getting

Info

Publication number: CN213129749U
Application number: CN202020508455.5U
Authority: CN
Inventors: 宋玲玲; 张�诚
Original assignee: Affiliated Zhongshan Hospital of Dalian University
Current assignee: Affiliated Zhongshan Hospital of Dalian University
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-05-07
Anticipated expiration: 2030-04-09

Abstract

A curved stone-taking basket belongs to the technical field of medical instrument manufacturing. The utility model discloses the device is including outer sheath pipe, basket and traction portion. The outer sheath tube is a double-channel tube and comprises a channel I and a channel II, the tail part of the outer sheath tube is provided with a handle I, the channel II is L-shaped and is connected with an imaging connector on the handle I, and the surface of the connector is provided with threads; the net basket comprises a head I, a connecting rod I and a handle II, wherein the head I is composed of four steel wires, two ends of the head I are connected to form a diamond shape, an arc shape, a drop shape or a spiral shape, the steel wire connecting rod I is connected with the four steel wires of the head I through a channel I, the handle II is a single-channel metal pipe, a channel III is arranged in the handle II, and the outer wall of the metal pipe is connected with the steel wire connecting rod I; the traction part comprises a head part II, a connecting rod II and a handle III, wherein the head part II is a single steel wire and is connected with the pipe wall of the head end through a side hole on the pipe wall of the outer sheath; the utility model has the advantages that the tube head end of the outer sheath can be bent by the traction part, and the tube can enter the biliary trunk through the duodenal papilla more easily.

Description

Crooked stone basket of getting

Technical Field

The utility model belongs to the technical field of medical instrument makes, a wicresoft's medical technology and surgical instruments are related to for get stone apparatus under the duodenoscope, specifically speaking are crooked get stone basket pipe.

Background

Common bile duct stones are common diseases and frequently encountered diseases in China, the stones block common bile ducts to induce complications such as acute cholangitis, obstructive jaundice and acute cholangiogenic pancreatitis, the symptoms such as shivering, fever, abdominal pain and jaundice appear, serious patients even cause shock, and long-term stone stimulation has the risk of bile duct cancer, so that the common bile duct stones are important diseases which harm human health.

Endoscopic retrograde cholangiopancreatography is a first-line treatment scheme for treating common bile duct calculi at present, and is particularly suitable for patients with general anesthesia biliary tract exploration contraindications, such as heart-lung dysfunction, blood coagulation dysfunction and the like, or patients with high risk in general anesthesia biliary tract exploration, such as no expansion of common bile duct, multiple operation history of upper abdomen and the like. Basket and sacculus are the main work that the stone was got to scope retrograde cholangiopancreatography art, and wherein great calculus can use the rubble basket rubble, and medium-size calculus can use gets the stone basket and take out, and less calculus or silt appearance calculus can use gets the stone sacculus and take out.

The stone-taking basket and the stone-breaking basket are mainly formed by connecting four metal wires in a spiral shape, a diamond shape, a water drop shape and an arc shape. When the calculus is removed by the endoscopic retrograde cholangiopancreatography, the calculus removing basket catheter is firstly placed above the choledocholithiasis, the basket is opened, then the calculus removing basket catheter is pulled outwards, the calculus enters the basket through a gap between the two metal wires, and finally the basket is tightened to remove or strain the calculus.

The calculus removing basket and the calculus crushing basket conduit are straight heads, and the calculus removing basket and the calculus crushing basket conduit are difficult to place into the common bile duct through the duodenal papilla due to the fact that the axial direction of the duodenal clamp is an acute angle with the axial direction of the common bile duct. Therefore, in order to make the calculus removing basket enter the common bile duct conveniently, when the calculus removing basket catheter is placed in the duodenoscope forceps channel, the head of the calculus removing basket catheter needs to be shaped, but after the calculus is removed once, the head of the catheter becomes straight again, the head of the catheter needs to be taken out again for shaping, and the calculus removing time is greatly prolonged. The outer tube of rubble basket is the tubular metal resonator, consequently is difficult to carry out moulding to rubble basket outer sheath pipe head end, and the basket need can get into common bile duct in the guide below of seal wire more, even take the seal wire guide, and the rubble basket gets into common bile duct's degree of difficulty through the duodenum nipple still great, easily damages duodenum nipple sphincter and pancreatic duct sphincter, leads to the emergence of complication such as nipple edema, hemorrhage and acute pancreatitis.

Disclosure of Invention

The utility model aims at providing a curved stone-taking basket which can pass through more easily and selectively enter a target position more easily.

The utility model comprises an outer sheath tube 1, a basket 2 and a traction part 3, wherein,

a. the outer sheath tube 1 is a double-channel tube and comprises a channel I4 and a channel II 5, the tail part of the outer sheath tube is provided with a handle I6, the channel II 5 is connected with a joint 7 on the handle, and the surface of the joint is provided with threads;

b. the basket 2 comprises a head I8, a connecting rod I9 and a handle II 10, wherein the head I8 is composed of basket wires, the connecting rod I9 is connected with the head I8 formed by the basket wires through a channel I4, the handle II 10 is a single-channel pipe and is internally provided with a channel III 11, and the outer wall of the handle II 10 is connected with the connecting rod I9;

c. the traction part 3 comprises a head part II 12, a connecting rod II 13 and a handle III 14, wherein the head part II 12 is a traction wire and is connected with the head end of the tube wall of the outer sheath tube 1 through a side hole 15 on the wall of the outer sheath tube 1;

the outer diameter of the outer sheath tube 1 is 200cm, the outer diameter is 8.5F, the inner diameter is 7F, the diameter of the channel II 5 is 1mm, the length of the handle I6 is 10cm, the outer diameter is 10F, and the inner diameter is 8.5F;

after the head I8 consisting of 4 basket wires is released, the length is 3cm, the diameter is 2cm, the diameter of the basket wire is 0.8mm, and the length of the connecting rod I9 is 200cm, and the diameter is 2 mm; the handle II 10 is 15cm long, 8F in outer diameter and 7F in inner diameter, and the handle II 10 is a steel pipe;

the diameter of a traction wire of the head II 12 of the traction part 3 is 1mm, the length of the connecting rod II 13 is 15cm, the outer diameter is 6F, and the length of the handle III is 2 cm.

The utility model discloses the beneficial effect who reaches is:

1. the utility model discloses well traction wire can make stone basket epitheca tube head end produce certain radian, gets into in the courage main through the duodenum nipple more easily.

2. The utility model discloses well traction wire can make stone extraction basket epitheca tube head end produce certain radian, gets stone in the selective entering cystic duct of the gallbladder, right hepatic duct or left hepatic duct of ability more easily.

Drawings

Figure 1 is a schematic structural view of the present invention,

figure 2 is a schematic view of the incoming baskets of the present invention,

figure 3 is a schematic view of the curved outer sheath tip of the present invention entering the duodenal papilla,

the multifunctional medical instrument comprises an outer sheath tube 1, a basket 2, a traction part 3, a channel I, a channel II, a handle I, a joint 7, a head I, a connecting rod I, a handle II, a channel III, a head II, a connecting rod II, a handle III, a handle 11, a head II, a connecting rod 14, a handle III and a side hole 15.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

a. the sheath tube 1 is a double-channel tube and comprises a channel I4 and a channel II 5, the tail part of the sheath tube is provided with a handle I6, the channel II 5 is L-shaped and is connected with an imaging connector 7 on the handle, and the surface of the connector is provided with threads;

b. the basket 2 comprises a head I8, a steel wire connecting rod I9 and a handle II 10, wherein the head I8 is composed of 4 steel wires, two ends of the head I8 are connected to form a diamond shape, an arc shape, a water drop shape or a spiral shape, the steel wire connecting rod I9 is connected with the head I8 composed of 4 steel wires through a channel I4, the handle II 10 is a single-channel steel pipe and is internally provided with a channel III 11, and the outer wall of the handle II 10 is connected with the steel wire connecting rod I9;

c. the traction part 3 comprises a head part II 12, a connecting rod II 13 and a handle III 14, wherein the head part II 12 is a single steel wire and is connected with the head end of the tube wall of the outer sheath tube 1 through a side hole 15 on the wall of the outer sheath tube 1;

after the head I8 of the basket 2 is released, the length is 3cm, the diameter is 2cm, the diameter of a basket steel wire is 0.8mm, and the length of a basket connecting rod I9 is 200cm, and the diameter is 2 mm; the handle II 10 is 15cm long, 8F in outer diameter and 7F in inner diameter;

the diameter of a traction steel wire at the head II 12 of the traction part 3 is 1mm, the length of the connecting rod II 13 is 15cm, the outer diameter is 6F, and the length of the handle III is 2 cm.

Entering the common bile duct through the duodenal papilla:

the basket 2 is pulled into the sheath tube 1, and the device is placed outside the duodenal papilla. The basket handle II 10 is fixed, the traction part handle III 14 is pulled back, the direction of the head of the outer sheath tube 1 is changed, the axial direction of the head end of the outer sheath tube 1 is consistent with the axial direction of the common bile duct, and the head end of the outer sheath tube 1 enters the common bile duct.

Selective entry into intrahepatic bile ducts:

get behind the stone basket entering common bile duct, the utility model discloses well traction wire 12 makes 1 tube head end of stone basket sheath produce certain radian, makes 1 head end of stone basket sheath pipe towards intrahepatic bile duct, and fixed 1 handle of sheath pipe impels basket handle II 10 forward, and the basket gets into intrahepatic bile duct.

Claims

1. A curved stone-taking basket is characterized by comprising an outer sheath tube (1), a basket (2) and a traction part (3), wherein,

a. the outer sheath tube (1) is a double-channel tube and comprises a channel I (4) and a channel II (5), the tail part of the outer sheath tube is provided with a handle I (6), the channel II (5) is connected with a joint (7) on the handle I (6), and the surface of the joint is provided with threads;

b. the basket (2) comprises a head I (8), a connecting rod I (9) and a handle II (10), the head I (8) is composed of basket net wires, the connecting rod I (9) is connected with the head I (8) composed of the basket net wires through a channel I (4), the handle II (10) is a single-channel pipe and is internally provided with a channel III (11), and the outer wall of the handle II (10) is connected with the connecting rod I (9);

c. the traction part (3) comprises a head part II (12), a connecting rod II (13) and a handle III (14), the head part II (12) is a traction line, and is connected with the head end of the tube wall of the outer sheath tube (1) through a side hole (15) on the wall of the outer sheath tube (1).

2. A curved stone-extraction basket according to claim 1, wherein the head i (8) consists of 4 basket wires.

3. The curved stone-extraction basket according to claim 1, wherein the sheath (1) has an outer diameter of 200cm, 8.5F, and an inner diameter of 7F; the diameter of the channel II (5) is 1mm, the length of the handle I (6) is 10cm, the outer diameter is 10F, and the inner diameter is 8.5F.

4. A curved stone-extraction basket according to claim 1 or 2, characterized in that the head i (8) of the basket (2) is released 3cm long and 2cm in diameter, the basket wire diameter is 0.8mm, the connecting rod i (9) is 200cm long and 2mm in diameter; the handle II (10) is 15cm long, 8F in outer diameter and 7F in inner diameter.

5. The curved stone-taking basket according to claim 1, wherein the diameter of the drawing wire of the head II (12) of the drawing part (3) is 1mm, the length of the connecting rod II (13) is 15cm, the outer diameter is 6F, and the length of the handle III (14) is 2 cm.